CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net earnings	$ 37,455	$ 40,480
Adjustments to reconcile net earnings to net cash flows from operations:
Depreciation and amortization	20,253	21,178
Noncash loss on trading securities	87	71
Impairment of property, plant and equipment	0	1,145
Stock-based compensation	3,670	2,775
Defined benefit pension plan benefit	(132)	(594)
Contribution to defined benefit pension plan	(13,943)	(731)
Gain on sale of property, plant and equipment	(227)	(280)
Deferred income taxes	9,662	4,819
Changes in assets and liabilities:
Receivables	(25,424)	29,794
Inventories	(7,616)	(1,201)
Prepaid expenses and other assets	(7,310)	(4,489)
Contract asset - costs and profits in excess of billings	(7,361)	(27,536)
Accounts payable	(704)	(29,449)
Accrued expenses	4,585	(6,407)
Other noncurrent liabilities	(234)	440
Income taxes refundable	(4,848)	3,033
Net cash flows from operating activities	7,913	33,048
Cash flows from investing activities:
Purchase of property, plant and equipment	(21,109)	(16,248)
Proceeds from sale of assets	422	714
Acquisitions, net of cash acquired	(57,106)	(4,800)
Settlement of net investment hedges	0	(863)
Other, net	(1,667)	(1,782)
Net cash flows from investing activities	(79,460)	(22,979)
Cash flows from financing activities:
Proceeds from short-term agreements	9,327	219
Proceeds from long-term borrowings	10,000	0
Principal payments on long-term borrowings	(10,194)	(249)
Dividends paid	(8,213)	(8,510)
Dividends to noncontrolling interest	(838)	(1,281)
Purchase of noncontrolling interest	(23,082)	(5,510)
Purchase of treasury shares	(9,421)	(14,790)
Proceeds from exercises under stock plans	1,174	2,972
Purchase of common treasury shares—stock plan exercises	(747)	(1,504)
Net cash flows from financing activities	(31,994)	(28,653)
Effect of exchange rate changes on cash and cash equivalents	1,568	5,442
Net change in cash and cash equivalents	(101,973)	(13,142)
Cash, cash equivalents, and restricted cash—beginning of year	313,210	492,805
Cash, cash equivalents, and restricted cash—end of year	$ 211,237	$ 479,663